From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753907AbdBIUx2 (ORCPT ); Thu, 9 Feb 2017 15:53:28 -0500 Received: from smtp2.provo.novell.com ([137.65.250.81]:41550 "EHLO smtp2.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753585AbdBIUxY (ORCPT ); Thu, 9 Feb 2017 15:53:24 -0500 From: Davidlohr Bueso To: akpm@linux-foundation.org Cc: manfred@colorfullife.com, dave@stgolabs.net, linux-kernel@vger.kernel.org, Davidlohr Bueso Subject: [PATCH 1/4] ipc/shm: do not check for MAP_POPULATE Date: Thu, 9 Feb 2017 12:52:59 -0800 Message-Id: <1486673582-6979-2-git-send-email-dave@stgolabs.net> X-Mailer: git-send-email 2.6.6 In-Reply-To: <1486673582-6979-1-git-send-email-dave@stgolabs.net> References: <1486673582-6979-1-git-send-email-dave@stgolabs.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We do not support prefaulting functionality in sysv shm, nor MAP_NONBLOCK for that matter. Drop the pointless check for populate in do_shmat(). Signed-off-by: Davidlohr Bueso --- ipc/shm.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/ipc/shm.c b/ipc/shm.c index 06ea9ef7f54a..6b3769967789 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -1234,8 +1234,6 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, err = (long)addr; invalid: up_write(¤t->mm->mmap_sem); - if (populate) - mm_populate(addr, populate); out_fput: fput(file); -- 2.6.6